The Texas Instruments CD4511BPWR is a BCD-to-7-segment latch/decoder/driver designed to drive common-cathode LED displays. It accepts a 4-bit BCD input and drives the corresponding seven-segment pattern, with a built-in latch to hold the displayed value. The 40 nA typical supply current makes it suitable for battery-backed or always-on display modules where every microamp counts. The wide 3V to 18V supply range lets it interface directly with 5V, 12V, or 15V logic systems without level shifting.
The CD4511BPWR comes in a 16-TSSOP package with a 4.40 mm body width and 0.65 mm lead pitch — a compact surface-mount footprint that saves board area compared to the DIP version. The "PWR" suffix indicates Tape & Reel (TR) or Cut Tape (CT) delivery, which is the standard for pick-and-place assembly. If your rework station is set up for fine-pitch TSSOP, the hot-air profile is straightforward; just watch the MSL level on the reel label before reflow.